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![Mike Kestner](/assets/img/avatar_default.png)
* cairo/*: merge changes to Mono.Cairo since we split back in Oct 2008. Not much changed. Scrubbed the doc index and updated NativeMethods to match. Commented with DONTCARE the ones we will ignore. Implemented a few of them, including an initial Device binding. Still some work to do, and some discovery to be done to see what happened to Xcb, Glitz, and DirectFB surfaces and whether we need to remove those classes.
185 lines
4.6 KiB
C#
185 lines
4.6 KiB
C#
// Copyright (C) 2011 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Runtime.InteropServices;
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namespace Cairo
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{
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[StructLayout(LayoutKind.Sequential)]
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public struct RectangleInt {
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public int X;
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public int Y;
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public int Width;
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public int Height;
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}
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public enum RegionOverlap {
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In,
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Out,
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Part,
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}
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public class Region : IDisposable {
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IntPtr handle;
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public IntPtr Handle {
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get { return handle; }
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}
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~Region ()
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{
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Console.WriteLine ("Cairo.Region finalizer reached - developer must dispose regions manually to avoid leakage due to thread-safety concerns.");
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}
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public Region (IntPtr handle) : this (handle, false) {}
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public Region (IntPtr handle, bool owned)
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{
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this.handle = handle;
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if (!owned)
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NativeMethods.cairo_region_reference (handle);
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}
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public Region ()
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{
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handle = NativeMethods.cairo_region_create ();
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}
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public Region (RectangleInt rect)
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{
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handle = NativeMethods.cairo_region_create_rectangle (ref rect);
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}
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public Region (RectangleInt[] rects)
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{
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handle = NativeMethods.cairo_region_create_rectangles (rects, rects.Length);
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}
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public Region Copy ()
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{
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return new Region (NativeMethods.cairo_region_copy (Handle), true);
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}
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public void Dispose ()
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{
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if (handle != IntPtr.Zero)
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NativeMethods.cairo_region_destroy (Handle);
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handle = IntPtr.Zero;
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GC.SuppressFinalize (this);
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}
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public override bool Equals (object obj)
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{
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return (obj is Region) && NativeMethods.cairo_region_equal (Handle, (obj as Region).Handle);
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}
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public override int GetHashCode ()
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{
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return Handle.GetHashCode ();
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}
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public Status Status {
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get { return NativeMethods.cairo_region_status (Handle); }
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}
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public RectangleInt Extents {
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get {
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RectangleInt result;
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NativeMethods.cairo_region_get_extents (Handle, out result);
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return result;
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}
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}
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public int NumRectangles {
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get { return NativeMethods.cairo_region_num_rectangles (Handle); }
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}
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public RectangleInt GetRectangle (int nth)
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{
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RectangleInt val;
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NativeMethods.cairo_region_get_rectangle (Handle, nth, out val);
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return val;
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}
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public bool IsEmpty {
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get { return NativeMethods.cairo_region_is_empty (Handle); }
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}
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public RegionOverlap ContainsPoint (RectangleInt rectangle)
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{
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return NativeMethods.cairo_region_contains_rectangle (Handle, ref rectangle);
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}
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public bool ContainsPoint (int x, int y)
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{
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return NativeMethods.cairo_region_contains_point (Handle, x, y);
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}
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public void Translate (int dx, int dy)
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{
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NativeMethods.cairo_region_translate (Handle, dx, dy);
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}
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public Status Subtract (Region other)
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{
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return NativeMethods.cairo_region_subtract (Handle, other.Handle);
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}
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public Status SubtractRectangle (RectangleInt rectangle)
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{
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return NativeMethods.cairo_region_subtract_rectangle (Handle, ref rectangle);
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}
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public Status Intersect (Region other)
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{
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return NativeMethods.cairo_region_intersect (Handle, other.Handle);
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}
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public Status IntersectRectangle (RectangleInt rectangle)
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{
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return NativeMethods.cairo_region_intersect_rectangle (Handle, ref rectangle);
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}
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public Status Union (Region other)
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{
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return NativeMethods.cairo_region_union (Handle, other.Handle);
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}
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public Status UnionRectangle (RectangleInt rectangle)
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{
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return NativeMethods.cairo_region_union_rectangle (Handle, ref rectangle);
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}
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public Status Xor (Region other)
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{
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return NativeMethods.cairo_region_xor (Handle, other.Handle);
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}
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public Status XorRectangle (RectangleInt rectangle)
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{
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return NativeMethods.cairo_region_xor_rectangle (Handle, ref rectangle);
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}
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}
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}
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